spacecraft

noun

space·​craft ˈspās-ˌkraft How to pronounce spacecraft (audio)
: a vehicle or device designed for travel or operation outside the earth's atmosphere

Examples of spacecraft in a Sentence

Recent Examples on the Web
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The breakthrough came from the US Air Force, which had spent years developing a propellant called ASCENT (Advanced SpaceCraft Energetic Non-Toxic propellant) as a greener replacement for hydrazine, a highly toxic chemical traditionally used in spacecraft propulsion. Omar Kardoudi june 05, New Atlas, 5 June 2026 Following launch, astronauts aboard the International Space Station will use the Canadarm2 robotic arm to capture Cygnus and install the spacecraft to the Unity module’s Earth-facing port for cargo unloading. Richard Tribou, The Orlando Sentinel, 4 June 2026 The two missions raised the total number of active Starlink satellites in orbit to over 10,500 spacecraft, out of the more than 12,162 launched since 2019. Robert Z. Pearlman, Space.com, 4 June 2026 But the spacecraft’s sudden failure was a surprise. Stephen Clark, ArsTechnica, 4 June 2026 See All Example Sentences for spacecraft

Word History

First Known Use

1929, in the meaning defined above

Time Traveler
The first known use of spacecraft was in 1929

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Cite this Entry

“Spacecraft.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spacecraft. Accessed 6 Jun. 2026.

Kids Definition

spacecraft

noun
space·​craft ˈspā-ˌskraft How to pronounce spacecraft (audio)
plural spacecraft
: a vehicle for travel beyond the earth's atmosphere

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